This might be a game, but it s not something you play. - Akihiko Kayaba, Sword Art Online programmer Without any memory of his first stint in the Underworld, Kirito has no idea what to expect now that he s back inside. In his absence, however, much has happened in the lives of his former companions: Eugeo hasn t been the same ever since Alice was taken by an Integrity Knight, and to make matters worse, Alice s sister, Selka, has gone to follow in her footsteps, unaware of the danger that lies ahead